[14a-2G-1~10] 3.6 Ultrashort-pulse and high-intensity lasers

▲ [14a-2G-4] Generation of femtoscecond vacuum ultraviolet laser pulse by four-wave Raman mixing in Hydrogen.

〇Vu Duong^1,2, Trong Nghia Nguyen¹, Yoshifumi Mori², Yuchiro Kida², Totaro Imasaka^2,3 (1.Inst. of Phys., Vietnam Acad. of Sci. and Tech., 2.Kyushu Univ., 3.Center for Future Chem., Kyushu Univ.)

Keywords:Vacuum Ultraviolet,Femtosecond,Four-wave Raman mixing

Two-color pump beams (300 mW @ 800 nm and 113 mW @ 1200 nm, 35 fs, 1 kHz) were focused into a hydrogen cell for molecular phase modulation. A probe beam (2 mW @ 200 nm) was then focused into the hydrogen gas to generate femtosecond multi-color laser emission extending from the visible (600 nm) to the vacuum-ultraviolet (185 nm) region based on vibrational four-wave Raman mixing.